fixing BAT leak in new imprints select code, and thus fixing test sql/test/leaks/check0.sql
fixing BAT leak in new imprints select code,
and thus fixing test sql/test/leaks/check0.sql

zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb